7 General Maintenance
To Install a Filament on the EI XTR Source
7000/7010 Series TQ GC/MS Operating Manual 191
To Install a Filament on the EI XTR Source
Materials needed
• Filament assembly, EI (G7005-60061)
• Gloves, clean, lint-free (Large 8650-0030) (Small 8650-0029)
• Tweezers (8710-2460)
Procedure
1 Remove the old filament. (See “To Remove a Filament from the EI XTR
Source” on page 189.)
2 Place the new filament into its position on the ion source body. (See
Figure 62 on page 190.)
3 Secure the filament to the ion source body with the screw.
4 After installing the filament, verify that it is not grounded to source body.
5 Reinstall the ion source. (See “To Install the EI XTR Source” on page 187.)
6 Close the front analyzer chamber. (See “To Close the Front Analyzer
Chamber” on page 195.)
7 Pumpdown the MS. (See “To Pumpdown the MS” on page 120.)
8 Autotune the MS. (See “To Autotune the MS for EI Mode” on page 117.)
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